a wild or only partially tamed horse or pony of the W U.S. plains
Origin of broncoMexican Spanish from Sp, rough from Vulgar Latin an unverified form bruncus, a block
An untrained or partially trained horse or pony of western North America.
Origin of broncoAmerican Spanish from Spanish wild perhaps from Vulgar Latin bruncus knot in a tree perhaps from Latin broccus projecting ( influenced by truncus stump )
- A horse of western North America that is wild or not fully broken.
From Spanish bronco (“rough”).